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Biatora hypophaea
Crustose lichen with a gray thallus and distinctive bluish-black ascospores. Pic one has been cropped to see the ascospores. They are so small that they are measured in microns. According to Wikipedia, they are between 8 and 14 microns in diameter. The overall width of the lichen was 3 cm.
Spotted on the smooth bark of a Red alder tree. The small stand of alders were covered in crustose lichens. Spring/wetland surrounded by coniferous forest. Cascade foothills.
Spotted on Jan 25, 2020
Submitted on Feb 15, 2020
1 Comment
"microns." I always suspected there was a more technical term for "teensy weensy." 😊 Another good spotting and ID Brian.